No network connection available? - Vibrant Q&A, Help & Troubleshooting

Sometimes when I run an app, I get informed that thee is no internet connection and I can't launch the app, even though it clearly says I'm on 3g. This actually happens frequently kinda, like when I run the YouTube or livescores app. Has anyone experienced this?
Sent from my SGH-T959 using XDA App

I may be trying to get the feed from Wifi. Turn off the wifi just to make sure.

Hi.
My apps complain when they are using the wifi network, don't have a problem on EDGE though...
None of my apps, except the browser, can access internet while using wifi. If someone can help me fix this, I will really appreciate that... This problem is giving me a real headache...
Thanks.

Related

[Q] wifi connected but can not connect

Hey I'm new to android, just got a vibrant last week. Decided to unlock it as I travel a lot. The unlock worked, but now I'm having issues with my wifi. I can connect to a wireless network but I cant load pages. The wireless signal is strong and I tried with different routers, but still no luck. Looked through the forum and googled it but couldn't find a solution. If some one could please help with this, it would be much appreciated
try clearing your current wifi settings including remembered connections, passwords, and everything else...then re-scan for networks all over again, that's all I can think of for now
By that you mean just gong into settings->wireless and networks->wifi settings and then just forget the net work, rescan, and rejoin the network? If so, I did that but am still getting the same result. If you can think of anything else or if I didnt do what you suggested correctly please let me know. Thanks
srah said:
By that you mean just gong into settings->wireless and networks->wifi settings and then just forget the net work, rescan, and rejoin the network? If so, I did that but am still getting the same result. If you can think of anything else or if I didnt do what you suggested correctly please let me know. Thanks
Click to expand...
Click to collapse
yeah, thats what I meant :/....hmmm...sounds like your connection is working, can you download stuff from the market or is it just the browser? cause I unlocked mine too and wifi works fine
No I cant download anything from the market. I cant do anything that requires an internet connection, but it does show that I am connected to a network.
srah said:
No I cant download anything from the market. I cant do anything that requires an internet connection, but it does show that I am connected to a network.
Click to expand...
Click to collapse
hmmm...im out of tips then ...perhaps some other members can be of more assistance
I sure hope so, thanks for your help
Have you been able to try another network? My first thought was it was in Ad-Hoc mode but I could be wrong. If nothing else restore to stock firmware and then try a different unlock.
Happened to me too. It would show the wifi icon on the notification bar but wouldn't load pages. I'd go to the settings and it'd say can't turn off wifi or can't turn on wifi. And when it was "on" I'd say connecting to modem then it'd just stop. When I was using the browser on wifi it would load a page even when I had full bars. I had to turn it off then back on to load another page. Is this similar to the problem your having?
Sent from my SGH-T959 using XDA App
I hope this doesn't sound stupid but yesterday I uninstalled Advanced Task Manager and poof my wifi started working again. The phone also seems to suffer from less occasional lag without it installed, but that's another story for another thread. Prior to this I had to manually turn my wifi connection off and on, but even that didn't always work. Since the uninstall I have not my wifi connection once. I am currently using the stock rom, rooted with minor adjustments here and there.
hi guys, i also have this problem.
i will be taking the phone in to the tmobile store on thursday.
it shows that i am connected via wifi; however, anything that requires an internet connection does not load.
very frustrating, since just yesterday i used the samsung kies software to tether a network for my laptop. i was testing the capability of the vibrant to act as a modem, and it worked just fine.
any help would be appreciated!
thank you
Charlie
connected but not connected
I also have this problem.
In my Vibrant shows that i connected, but i can not load pages. Someone
found any solution to this problem?
Hi all,
This is happening to me too. Rebooting seems to get Wifi working correctly again. But the problem comes back eventually.
Maybe a bug in the latest JI6 update?
Wi-fi problem.
Someone found any solution for this problem?
Froyo's update will fix this issue?
Thanks.
i hang on you **** iphone users they just bay for its cool smartphone **** iphone android is the king

Galaxy S II Wifi Problem (Need to Restart It to properly work)

Hi guys, in this days i have noticed a problem with my gsII.
Sometimes I have the gsII connected to my router but internet connection doesn't work.
I'll try to explain better what i mean... I start wifi on my gsII and use internet connection without problem. Then I set the phone in standby mode leaving wifi on. When after a while i want to use internet connection, it doesn't work. The telephone is still connected to my router but i can't use internet on the phone.
The only way to make internet connection work is to disable wifi e then reactivate it.
This is really frustrating....
I've got the telephone from three months but only now I'm noticing this problem because first I used to disable the wifi and activate it only when i need it.
Am I the only to have this problem? Is there a solution?
Thanks to everyone in advance... any help would be appreciated
A video is more than thousands of words, so this is an "example video" of the bug:
http://www.youtube.com/watch?v=4um-AqLk1jw
Test it with a different router, i.e. Cisco E4200.
It would a good idea but i have to buy a new router or go to some friend's house for 2-3 hours. I'll keep this idea in my mind thanks
I have this problem, mines a bt home hub v3. Don't think its the router I blame the phone. I have to restart phone to make it connect with ability to use internet
Sent from my GT-I9100 using XDA App
finito02 said:
Hi guys, in this days i have noticed a problem with my gsII.
Sometimes I have the gsII connected to my router but internet connection doesn't work.
I'll try to explain better what i mean... I start wifi on my gsII and use internet connection without problem. Then I set the phone in standby mode leaving wifi on. When after a while i want to use internet connection, it doesn't work. The telephone is still connected to my router but i can't use internet on the phone.
The only way to make internet connection work is to disable wifi e then reactivate it.
This is really frustrating....
I've got the telephone from three months but only now I'm noticing this problem because first I used to disable the wifi and activate it only when i need it.
Am I the only to have this problem? Is there a solution?
Thanks to everyone in advance... any help would be appreciated
Click to expand...
Click to collapse
I do not know what " standby mode" is? I have the same phone and have no problems with wifi. The phone goes to sleep when I do not use it and awakes when I use it.
It seems that your phones wifi is sleeping and not waking up. I always turn it off when not using it anyway. Not the full answer but it works for me.
Sent from my GT-I9100 using xda premium
I don't use wifi very often, but I do notice this problem with 3G data. Modem problem? I'm using kh3.
Sent from my GT-I9100 using XDA App
I believe I know and had the problem you describe.
For me the Wifi would work perfectly at first and then after the phone had been left for a while I would try to use it and get 'no connection' type errors. Sometimes it would even stop working even if I just waited too long with the phone still on in my hand.
I found that if I either disabled router wifi security or set it to WEP the problem disappeared. The issue occurred on 2.3.3. My router is a DLink one fyi. I have yet to test 2.3.4 which came out yesterday in Sweden. Ill let u know.
What version android are u? Does relaxing ur wifi security fix it??
Sent from my GT-I9100 using XDA App
I really should have said that is a workaround not a fix. I can add also that I have contacted Samsung about it. They cannot confirm or deny thru issue but suggested that I take the phone to their service centre. Yay...
Sent from my GT-I9100 using XDA App
I had this issue...the solution is...go to wifi settings>>>advanced>>>>regulatory domain>>>>change channel to 14 instead of 11....
Hope this helps...
Sent from my GT-I9100 using XDA App
I do not know what " standby mode" is? I have the same phone and have no problems with wifi. The phone goes to sleep when I do not use it and awakes when I use it.
It seems that your phones wifi is sleeping and not waking up. I always turn it off when not using it anyway. Not the full answer but it works for me.
Click to expand...
Click to collapse
Ehm...For standby mode I mean that I lock the phone, I only shut down the display....understand what I mean?
If you turn wifi off when you don't use it, you'll never see this bug. Try to leave wifi on for some hours if you want to understand if also your gsII has this bug.
I don't use wifi very often, but I do notice this problem with 3G data. Modem problem? I'm using kh3.
Click to expand...
Click to collapse
I'ms using kg1, i've also head about people that have this problem with 3g. Try to keep the wi-fi on for some hours (disabling 3g) to understand if you have the problem
believe I know and had the problem you describe.
For me the Wifi would work perfectly at first and then after the phone had been left for a while I would try to use it and get 'no connection' type errors. Sometimes it would even stop working even if I just waited too long with the phone still on in my hand.
I found that if I either disabled router wifi security or set it to WEP the problem disappeared. The issue occurred on 2.3.3. My router is a Netgear one fyi. I have yet to test 2.3.4 which came out yesterday in Sweden. Ill let u know.
What version android are u? Does relaxing ur wifi security fix it??
Click to expand...
Click to collapse
Yes, this is exactly what I mean. I have 2.3.3 with KG1. In this days this bug is happening really often...
I don't know what to do...
I really should have said that is a workaround not a fix. I can add also that I have contacted Samsung about it. They cannot confirm or deny thru issue but suggested that I take the phone to their service centre. Yay...
Click to expand...
Click to collapse
I'm wondering if a full wipe would help . In this days I'm really hating this bug.
Ps: A really strange thing of this bug that i've noticed is that internet connection doesn't work but the program androidVNC perfectly works!! Instead if I try to open 192.168.0.1 (router address) with any browser (opera, dolphin, stock's browser) it doesn't work!!
Really really strange.....
I had this issue...the solution is...go to wifi settings>>>advanced>>>>regulatory domain>>>>change channel to 14 instead of 11....
Hope this helps...
Click to expand...
Click to collapse
But are you talking about the phone settings or the router settings? On the router I'ms using channel 6...
M talkin abt phone settings...
Sent from my GT-I9100 using XDA App
I had this issue...the solution is...go to wifi settings>>>advanced>>>>regulatory domain>>>>change channel to 14 instead of 11....
Hope this helps...
Click to expand...
Click to collapse
I don't have "regulatory domain" in advance setting .... :S
zainqaiser said:
I had this issue...the solution is...go to wifi settings>>>advanced>>>>regulatory domain>>>>change channel to 14 instead of 11....
Hope this helps...
Click to expand...
Click to collapse
I tried changing the channel also. I have heard others getting this to work. Didn't work for me. You can use Wifi Analyser app on phone to find a clear channel and see how u go changing your router perhaps?
I tried re flashing also using factory restore. No fix for me.
Also noticed that u can sometimes get phone to work by toggling Network Data on/off. Not really fun either.
The wifi channels and security settings I am talking about are settings in the router not the phone. What wifi security are you using in your router?
Sent from my GT-I9100 using XDA App
I am not a believer the router is at fault in any case. I would entertain an incompatibility but nothing more.
Original router and security settings work fine for...wait for it...an iphone 3gs and a Motorola Defy (yes the phone which seems to have issues with doing everything else!)
Either way an incompatibility is not acceptable either if that's what it is
Sent from my GT-I9100 using XDA App
Also noticed that u can sometimes get phone to work by toggling Network Data on/off. Not really fun either.
Click to expand...
Click to collapse
I know this, and in fact i have to switch off and on wifi connection when this happens.
Now i'm trying to use channel 5 with the router ( but yesterday I've tested channel 6 and 13 without any result)
I hate this bug because beacause it happens only when he wants! I'm quite sure that assistance wouldn't solve the problem. A friend of mine has changed three gsII and said that every gsII that he has changed had this bug!
Ps: Another question.... How often do you have this bug?
Once a week? Once a day? Three times a day?
mwiggi said:
I have this problem, mines a bt home hub v3. Don't think its the router I blame the phone. I have to restart phone to make it connect with ability to use internet
Sent from my GT-I9100 using XDA App
Click to expand...
Click to collapse
Is NOT the phone.
i have the same problem reported in the 1st post.
i have been turning wifi off and then on again for a quick fix until now but i think the solution might be to drop the security on the router from WPA to WEP. Haven't tried it yet tho, because it doesn't bother me that much.
I had an ipad previously (before i had the SGS2) and it had exactly the same behaviour. I looked up the problem then and found a FAQ from the ISP that mentioned a compatibility problem between ipad and that router, so their suggestion was to set the router to WEP only.
have been turning wifi off and then on again for a quick fix until now but i think the solution might be to drop the security on the router from WPA to WEP. Haven't tried it yet tho, because it doesn't bother me that much.
Click to expand...
Click to collapse
I don't know if this solution works, I'll try it in this days.
Anyway... really compliments Samsung !!!
finito02 said:
Ps: Another question.... How often do you have this bug?
Once a week? Once a day? Three times a day?
Click to expand...
Click to collapse
Easily more than 3 times a day but then I use the phone a lot.
Problem had never occurred when I used only 3G. That was my workaround when I got fed up with it before I dropped the wifi security.
finito02 said:
Ps: Another question.... How often do you have this bug?
Once a week? Once a day? Three times a day?
Click to expand...
Click to collapse
For me it happens always after the phone comes back from stand by with wifi on.
steps to reproduce:
1-turn wifi on, and check it's connected and working
2-press power button to turn off screen
3-turn phone back on, try to access a new web page, it doesn't work
I noticed that while it's in stand by i will still receive email notifications so it probably only looses the connection when i turn it on again.
Also, if there was some program working (say, a download) when i went into standby it will probably still be transferring when it comes out of stand by, it's just the new connections that fail.

[Q] ssh droid

hello,
i have been visiting this site for a while now and it has been extremely useful.
i have recently registered because i got a lot of help from here and because im having a trouble which couldn't find the answer to anywhere.
i have a cf-rooted galaxy s2 i9100 firmware xwkk5, i came across with an amazingly comfortable app called ssh droid which allows me to extract or transfer files from or to my phone through wifi, unlike blue tooth its faster and easier.
i have managed to get the app working except for one gruesome side affect: soon after using the app i could no longer use internet connection on my phone through wifi, the only way to fix this was through disabling 3g and wifi and reconnect to wifi, only that a few moments later the problem would surface again and i couldnt use the internet even though it would appear like im connected to wifi and all is good.
the app has not affected 3g surfing only wifi surfing.
i had to wipe and flash to stock rom twice in order to fix this issue since even deleting the app proved to be useless, so frankly even though i would like to use this app very much it also looks a bit risky.
has anyone heard of this problem before?
any help would be appreciated.
I use quickSSHd, it's a payed app but I haven't had any problems with it.
Sent from my GT-I9100 using xda premium

[Q] Is there a way to force an app to use mobile data connection instead of WiFi?

I'm going to start here with this question before expanding it to the whole xda-developers Q&A area, since this is something I am trying to do specifically with my Note.
Is there a way to force an app to use mobile data connection (MDC) instead of wifi?
Specifically, I am trying to figure out if I can force Activesync and/or the Gmail app to use the MDC instead of the wifi connection when I am already connected on wifi, especially if there is a way to have either of those apps detect that it can't communicate with the servers through wifi, and auto change to using the MDC.
Reason for this??? I need to receive emails through Activesync and Gmail at all times, due to being on-call for work. The wifi connection screws up sometimes, but the phone stays connected to the wifi thinking it can still access everything ok. (yes, it is a problem with the router, not the phone, and that is being investigated separately)
Yes...I know I could just turn off my wifi connection on the phone, but I prefer to leave it on if possible, and just use the MDC for those two apps. Is that even possible to use the MDC while still connected to wifi, or is there a requirement that wifi be turned off to use MDC, no matter what???
Also, what is the proper name for the MDC? That might help me search for a solution. MDC was the best I could come up with for it, but maybe there is an "official" name for this connection?
I have the Tasker app installed, and have been thinking about trying a way to make Tasker cycle the wifi connection for me, but as I said, I would prefer to just leave the wifi turned on, and just force those two apps out the MDC.
Any help, or maybe just point me to some more info? I have search for about a week now, and am finding plenty of people asking how to restrict an app to use wifi, but not the other way around.
Thanks!
MonkeyThumper
Additional info:
Think of it this way...the wifi issue may be firewall related. So, the firewall stops my phone data from going to the internet through wifi. I need to still get my emails though. I would like to stay connected to my wifi, so that I could tell that I am having problem as soon as I try to surf the web, but my emails would still be coming through because they are using the mobile data connection instead.
I've never seen a mobile data connection stay active while wifi was turned on and connected.
Your best bet is to either fix whatever is wrong with your wifi connection, or bite the bullet and leave wifi off, until you can fix your wifi connection.
i agree, dont think its possible to use data connection,without turning off wifi first(impossible to have 2 data types simultaneously)
SayWhat10 said:
i agree, dont think its possible to use data connection,without turning off wifi first(impossible to have 2 data types simultaneously)
Click to expand...
Click to collapse
I dont think its impossible, as I believe txts come over data, not sure on this though. Is it possible to get what you want, yes most likely. Is it going to be easy, probably not. Address the real problem rather then applying an over complicated bandaid.
If your staying connected, but losing data at home then it is likely your modem is the culprit (assuming you use a modem connected to a wireless router, not a all in one device). If it belongs to the cable/phone company then contact them. If you bought your modem, find out what is compatable and buy a new one and see if this fixes it. I had the exact same problem with Time Warner the dumb asses tried telling me it was my wireless router problem despite still being about to be 100% up and running on internal (streaming music and movies from plex server while on phone and even able to RDP internally). Eventually they agreed to send a tech out and he laughed at them and gave me an upgraded modem and we were good to go.
Thanks for the support, but as I said, the wifi issue is being addresses separately. It may not be a quick & easy fix, because additional "testing" is being done on the network (firewall) that may be the real cause of the issue. It is being looked into though.
So...for everyone trying to get me to just "fix" the wifi first, sorry, but it isn't going to happen right now. I would just like to find a way to do what I requested in the original message.
Think of it this way...the wifi issue may be firewall related. So, the firewall stops my phone data from going to the internet through wifi. I need to still get my emails though. I would like to stay connected to my wifi, so that I could tell that I am having problem as soon as I try to surf the web, but my emails would still be coming through because they are using the mobile data connection instead.
Does that help clarify my need of this some?
I agree that it seems only one connection can be active at a time. On my windows mobile phone it defaulted to the data connection, android seems to default to wifi (i would bet this is a requirement from the carriers).
As for texts, they are delivered through spare bits on the cellular carrier channel that were left as spares very early on. Not via data channels. Which is why forcing us to pay to send texts is such robbery - we are literally using otherwise spare bandwidth.
How to bypass MDC?
I have a similar need as MonkeyThumper. My situation is that I have a camera application which allows me to view my camera's at home. It uses port 2000 of which our corporate firewall blocks. I have to turn off wi-fi so that I can use mobile in order to connect. Wondering if there is some routing protocol that I can tell my phone to use MDC instead of wi-fi specifically for that application. It's a nuissance to have to turn off wi-fi, check the camera's, then turn it back on regularly. Any help would be greatly appreciated.
Apps = Not Likely. HOWEVER.... and I can't say for sure - mainly because I have no idea if the radios shut down based upon connection (example 3G turns off when on wifi) - but you can modify the routes in the route table and (again in theory) force data down one pathway or the other.
For example - using a terminal on the phone try this: Connect Wifi - then in the terminal type: ip route show
Output will be something like
default via 192.168.1.1 dev wlan0
....
192.168.1.1 dev wlan0 scope link
Click to expand...
Click to collapse
If you disconnect Wifi and repeat (ip route show) the output will look like this:
default via 10.77.xx.xx dev rmnet_sdio0
...
10.77.xx.xx dev rmnet_sdio0 scope link
Click to expand...
Click to collapse
So, you should be able to manipulate the route table with something like:
su
ip route add 88.77.66.55/32 via 10.77.xx dev rmnet_sdio0 (where 88.77.66.55 is your home IP address or the IP you want to get to).
The problem with this is... it's not persistent. So you'll be best off doing this from a script or something once you verify it works.
There might be another way too... I'm sure there's a route file somewhere that can be configured.
XDA is no longer worth my time.
Need GMAIL on Mobile Data, others on WiFi
hi, my case is simple:
At work, we have WiFi.
But, GMAIL is blocked.
So, i want all my other apps to use the office WiFi, but gmail to go over my mobile data.
I would imagine this scenario is getting more and more common.
Does anyone have any ideas here, apart from having to turn wifi off everytime i want to check my gmail?
any help much appreciated,
thanks James.
TimOster said:
XDA is no longer worth my time.
Click to expand...
Click to collapse
Then go away.
2$HAYNE
TimOster said:
XDA is no longer worth my time.
Click to expand...
Click to collapse
okay, BYE
shayneflashindaily said:
Then go away.
2$HAYNE
Click to expand...
Click to collapse
here here, I 2nd that.
that was an easy problem to solve
TimOster said:
XDA is no longer worth my time.
Click to expand...
Click to collapse
Since you randomly go around posting this same statement on many threads, let me see if I can give you a hand.
Give me just a bit.....I'll see if I can get a mod to help you find the xda door. No need to hit thanks Tim....more than happy to do it for you.
Sent from my Big Ass Outlaw Phone
TimOster said:
XDA is no longer worth my time.
Click to expand...
Click to collapse
Then dont come back.
shayneflashindaily said:
Then go away.
2$HAYNE
Click to expand...
Click to collapse
captemo said:
okay, BYE
here here, I 2nd that.
that was an easy problem to solve
Click to expand...
Click to collapse
Lol you guys! He said that over a year ago!!
Bubbajoe40356 said:
Since you randomly go around posting this same statement on many threads, let me see if I can give you a hand.
Give me just a bit.....I'll see if I can get a mod to help you find the xda door. No need to hit thanks Tim....more than happy to do it for you.
Sent from my Big Ass Outlaw Phone
Click to expand...
Click to collapse
serge_harle_z said:
Then dont come back.
Click to expand...
Click to collapse
440bro said:
Lol you guys! He said that over a year ago!!
Click to expand...
Click to collapse
yeah, I know.
but my phone runs soooo good, im bored
been trying to decide what to flash. even if there are issues, it will give me something to do.

*REQUEST* Wifi auto switching app

Since I started making and receiving calls and texts via wifi I thought about how nice it would be to actually carry the tab with me in my laptop bag and have it automatically connect to open wifi spots without user interaction. Is this possible.
If I can get a notification of an open network, someone should be able to add code to or from to auto connect and disconnect without storing a thousand networks addresses... PigBak app... or something...
Sorry if this has been discussed couldn't find anything on site wide search..
Sent from my Inspire 4G using XDA
after a little more searching I found an app that functions the way I'd like it to... Wefi pro seems to do what I need for seamless calls.
Sent from my GT-P7510 using XDA

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